105122399 has 4 divisors (see below), whose sum is σ = 105146160. Its totient is φ = 105098640.

The previous prime is 105122371. The next prime is 105122411. The reversal of 105122399 is 993221501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 105122399 - 2²⁴ = 88345183 is a prime.

It is a super-2 number, since 2×105122399² = 22101437543030402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105122309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3062 + ... + 14819.

It is an arithmetic number, because the mean of its divisors is an integer number (26286540).

Almost surely, 2^105122399 is an apocalyptic number.

105122399 is a deficient number, since it is larger than the sum of its proper divisors (23761).

105122399 is an equidigital number, since it uses as much as digits as its factorization.

105122399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23760.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 105122399 is about 10252.9214860936. The cubic root of 105122399 is about 471.9526414588.

The spelling of 105122399 in words is "one hundred five million, one hundred twenty-two thousand, three hundred ninety-nine".